cosh( z )

The hyperbolic cosine of z in Math. Defined by

Real part on the real axis:

Imaginary part on the real axis is zero.

Real part on the imaginary axis:

Imaginary part on the imaginary axis is zero.

Real part on the complex plane:

Imaginary part on the complex plane:

Absolute value on the complex plane:

Related functions:   sinh   sech   arccosh

Function category: hyperbolic functions